ACS Review 12 Reactions of Arenes - Electrophilic Aromatic S

ACS Review 12 Reactions of Arenes - Electrophilic Aromatic...

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ACS Review Reactions of Arenes - Electrophilic Aromatic Substitution 1. Which one of the following is the electrophile in the reaction shown below? A. benzene B. NO 3 ¯ C. NO 2 + D. H 2 SO 4 2. What is the electrophile in the Friedel-Crafts alkylation reaction below? A. AlCl 3 B. Cl¯ C. benzene D. (CH 3 ) 3 C + 3. Which point on the potential energy diagram corresponds to the species shown to the right for the electrophilic bromination of benzene with Br 2 /FeBr 3 ? A. A B. B C. C D. D 4. Which species below best depicts the electrophile in the FeBr 3 -catalyzed bromination of benzene? A. Br 2 B. FeBr 4 - C. D. FeBr 3 5. Which one of the following reactions does not give tert -butylbenzene?
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A. benzene + (CH 3 ) 3 CCl/AlCl 3 B. benzene + (CH 3 ) 2 C=CH 2 /H 2 SO 4 C. benzene + (CH 3 ) 3 CH/AlCl 3 D. benzene + (CH 3 ) 3 COH/H 2 SO 4 6. Which point on the potential energy diagram corresponds to the species shown to the right for the electrophilic nitration of benzene with HNO 3 /H 2 SO 4 ? A. A B. B C. C D. D 7. What is(are) the product(s) of the following reaction? A. C 6 H 5 CH 2 CH 2 CH 3 B. C 6 H 5 CH(CH 3 ) 2 C. C 6 H 5 CH 2 CH 2 CH 2 C1 D. a mixture of C 6 H 5 CH 2 CH 2 CH 3 and C 6 H 5 CH(CH 3 ) 2 8. Which one of the following is not a resonance form of the cyclohexadienyl cation intermediate in the bromination of benzene?
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A. A B. B C. C D. D 9. How many mononitration products are possible in the nitration of naphthalene, shown below? A. only 1 B. 2 C. 3 D. 4 10. Rank the following compounds in order of decreasing reactivity to aromatic electrophilic bromination.
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This note was uploaded on 12/17/2010 for the course CHEM 101 taught by Professor Silva during the Spring '08 term at Binghamton.

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ACS Review 12 Reactions of Arenes - Electrophilic Aromatic...

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